Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Albert Davidson, MD

Internal Medicine Physician in Chesterfield, MO · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1306833801

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Registry record

Entity type Individual (Type 1)

Name Dr. John Albert Davidson

Credential MD

Sex Male

Practice address 232 S Woods Mill Rd, Division of Hyperbaric Medicine & Problem Wound Mgmt, Chesterfield, MO, 63017

Phone (314) 205-6818

Fax (314) 205-6770

Enumeration date Sep 30, 2005

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License R8881 (MO) Primary

2083P0011X Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License R8881 (MO) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
35170	Other	MO	GROUP HEALTH PLAN
4409	Other	MO	CARE MGMT RESOURCES
7600560	Other	MO	UNITED HEALTHCARE MIDWEST
7992	Other	MO	BLUE SHIELD MO
A09884	Other	MO	MERCY HEALTH PLAN
105889	Other	MO	HEALTHLINK PPO
35583	Other	MO	BLUE SHIELD MO

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does John Davidson practice?

The practice location on file with NPPES is in Chesterfield, MO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Davidson?

The National Provider Identifier (NPI) for John Davidson is 1306833801, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.